For a statistics assignment Amanda collected data on restaurant bills for tables. She categorized the price into 3 categories and also recorded whether or not alcohol was purchased. The results are shown in the table below. Under $30 $30-$60 Over $60 Alcohol was purchased 23 58 47 No alcohol was purchased 37 65 41
For a statistics assignment Amanda collected data on restaurant bills for tables. She categorized the price into 3 categories and also recorded whether or not alcohol was purchased. The results are shown in the table below. Under $30 $30-$60 Over $60 Alcohol was purchased 23 58 47 No alcohol was purchased 37 65 41
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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. For a statistics assignment Amanda collected data on restaurant bills for tables. She categorized the price into 3 categories and also recorded whether or not alcohol was purchased. The results are shown in the table below.
|
Under $30 |
$30-$60 |
Over $60 |
Alcohol was purchased |
23 |
58 |
47 |
No alcohol was purchased |
37 |
65 |
41 |
a) How many total tables did Amanda observe/record data for?
b) What proportion of the tables had bills over $60?
c) What proportion of the tables had alcohol as part of the purchase/bill?
d) Of the tables where alcohol was purchased, what proportion had bills over $60?
e) Of the tables with bills under $30, what proportion did NOT purchase any alcohol?
f) What proportion of the tables had $30-$60 bills AND had alcohol?
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